The two complementary strands of DNA are connected to each other through hydrogen bonds between the nitrogenous bases. This bond forms a double helix structure, with adenine pairing with thymine and cytosine pairing with guanine.
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No, the two strands of DNA are not identical to each other. They are complementary and have opposite sequences of nucleotide bases.
Yes, DNA strands are oriented antiparallel to each other, meaning one strand runs in the 3' to 5' direction while the other runs in the 5' to 3' direction. This is important for the complementary base pairing that occurs between the two strands.
In a double-stranded nucleic acid, the two strands run antiparallel to each other, meaning they run in opposite directions. This allows for complementary base pairing between the strands, with adenine (A) always pairing with thymine (T) and cytosine (C) always pairing with guanine (G).
Hydrogen bonds
Complementary. The base pairs in DNA always follow a specific pairing rule (A with T, and C with G), which means that the sequence of bases on one strand determines the sequence on the other, making them complementary.